OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

M $25.00 Put

M261218P00025000

Latest saved OI568Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
M $25.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5682840 2026-10-02: 562 OI2026-10-05: 562 OI2026-10-06: 562 OI2026-10-07: 562 OI2026-10-08: 562 OI2026-10-09: 562 OI2026-10-13: 563 OI2026-10-14: 563 OI2026-10-15: 563 OI2026-10-16: 563 OI2026-10-21: 568 OI2026-10-23: 568 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

M contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5680
Oct 21, 2026568+5
Oct 16, 20265630
Oct 15, 20265630
Oct 14, 20265630
Oct 13, 2026563+1
Oct 09, 20265620
Oct 08, 20265620
Oct 07, 20265620
Oct 06, 20265620
Oct 05, 20265620
Oct 02, 2026562No prior observation